Carolyn Bertozzi is a professor at Stanford University, her team studies cell surface interactions that contribute to human health and disease with specific projects in the areas of cancer, inflammation and bacterial infection.

In this fascinating TED talk, Bertozzi explains how our cells are coated with sugars that store information and speak a secret language. They are telling us our blood type, and potentially if we have cancer.

These sugars on cancerous cells interact with (and sometimes trick) the immune system. Learn how our bodies detect cancer and how the latest cancer-fighting medicines could help your immune system beat the disease.